FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2801506876> ?p ?o ?g. }

• W2801506876 endingPage "28" @default.
• W2801506876 startingPage "15" @default.
• W2801506876 abstract "Vegetation open fires constitute a significant source of particulate pollutants on a global scale and play an important role in both atmospheric chemistry and climate change. To better understand the emission and aging characteristics of smoke aerosols, we performed small-scale fire experiments using the Large Aerosol Chamber (LAC, 1800 m3) with a focus on biomass burning from Siberian boreal coniferous forests. A series of burn experiments were conducted with typical Siberian biomass (pine and debris), simulating separately different combustion conditions, namely, flaming, smoldering and mixed phase. Following smoke emission and dispersion in the combustion chamber, we investigated aging of aerosols under dark conditions. Here, we present experimental data on emission factors of total, elemental and organic carbon, as well as individual organic compounds, such as anhydrosugars, phenolic and dicarboxylic acids. We found that total carbon accounts for up to 80% of the fine mode (PM2.5) smoke aerosol. Higher PM2.5 emission factors were observed in the smoldering compared to flaming phase and in pine compared to debris smoldering phase. For low-temperature combustion, organic carbon (OC) contributed to more than 90% of total carbon, whereas elemental carbon (EC) dominated the aerosol composition in flaming burns with a 60–70% contribution to the total carbon mass. For all smoldering burns, levoglucosan (LG), a cellulose decomposition product, was the most abundant organic species (average LG/OC = 0.26 for pine smoldering), followed by its isomer mannosan or dehydroabietic acid (DA), an important constituent of conifer resin (DA/OC = 0.033). A levoglucosan-to-mannosan ratio of about 3 was observed, which is consistent with ratios reported for coniferous biomass and more generally softwood. The rates of aerosol removal for OC and individual organic compounds were investigated during aging in the chamber in terms of mass concentration loss rates over time under dark conditions and compared to the loss rate of EC. The latter is used as an inert tracer for estimating aerosol mechanical deposition and wall losses of the otherwise chemically conserved aerosol species. The OC/EC ratio increased with smoke aging for the flaming phase, suggesting a production/partitioning of organic compounds after emission. On the other hand, for smoldering burns OC/EC ratios decreased further with aging due to additional sinks of OC, other than those related to deposition and wall losses alone, such as evaporation of semi-volatile compounds. The chemical fingerprints of the major PM components of fresh and aged smoke found in this study are proposed to be used for the assessment of contributions from Siberian biomass burning to atmospheric pollution in source apportionment studies like those using molecular marker approaches." @default.
• W2801506876 created "2018-05-17" @default.
• W2801506876 creator A5009923403 @default.
• W2801506876 creator A5019964964 @default.
• W2801506876 creator A5021555258 @default.
• W2801506876 creator A5064871597 @default.
• W2801506876 creator A5066490269 @default.
• W2801506876 creator A5067216365 @default.
• W2801506876 creator A5067919769 @default.
• W2801506876 creator A5082836953 @default.
• W2801506876 creator A5084807182 @default.
• W2801506876 date "2018-07-01" @default.
• W2801506876 modified "2023-10-15" @default.
• W2801506876 title "Smoke aerosol chemistry and aging of Siberian biomass burning emissions in a large aerosol chamber" @default.
• W2801506876 cites W1237198631 @default.
• W2801506876 cites W1845871819 @default.
• W2801506876 cites W1907369419 @default.
• W2801506876 cites W1952525616 @default.
• W2801506876 cites W1963674693 @default.
• W2801506876 cites W1964031751 @default.
• W2801506876 cites W1964773166 @default.
• W2801506876 cites W1968862760 @default.
• W2801506876 cites W1973975204 @default.
• W2801506876 cites W1975010088 @default.
• W2801506876 cites W1977926507 @default.
• W2801506876 cites W1978690291 @default.
• W2801506876 cites W1986336265 @default.
• W2801506876 cites W1988118293 @default.
• W2801506876 cites W1989559574 @default.
• W2801506876 cites W1990652108 @default.
• W2801506876 cites W1992923722 @default.
• W2801506876 cites W1993847517 @default.
• W2801506876 cites W1994506621 @default.
• W2801506876 cites W1995568864 @default.
• W2801506876 cites W1998221689 @default.
• W2801506876 cites W1998256859 @default.
• W2801506876 cites W2004843164 @default.
• W2801506876 cites W2004920665 @default.
• W2801506876 cites W2007451406 @default.
• W2801506876 cites W2008493342 @default.
• W2801506876 cites W2014826917 @default.
• W2801506876 cites W2018078027 @default.
• W2801506876 cites W2028018078 @default.
• W2801506876 cites W2028904249 @default.
• W2801506876 cites W2030517320 @default.
• W2801506876 cites W2031691972 @default.
• W2801506876 cites W2032387514 @default.
• W2801506876 cites W2032415871 @default.
• W2801506876 cites W2036289626 @default.
• W2801506876 cites W2038107763 @default.
• W2801506876 cites W2040111204 @default.
• W2801506876 cites W2042331645 @default.
• W2801506876 cites W2043986065 @default.
• W2801506876 cites W2045345951 @default.
• W2801506876 cites W2052457809 @default.
• W2801506876 cites W2055352886 @default.
• W2801506876 cites W2060239082 @default.
• W2801506876 cites W2065448384 @default.
• W2801506876 cites W2066373886 @default.
• W2801506876 cites W2069441347 @default.
• W2801506876 cites W2069686774 @default.
• W2801506876 cites W2072025345 @default.
• W2801506876 cites W2076612066 @default.
• W2801506876 cites W2076862549 @default.
• W2801506876 cites W2083332818 @default.
• W2801506876 cites W2084806153 @default.
• W2801506876 cites W2087607362 @default.
• W2801506876 cites W2096073821 @default.
• W2801506876 cites W2097836207 @default.
• W2801506876 cites W2098210716 @default.
• W2801506876 cites W2100806431 @default.
• W2801506876 cites W2104510785 @default.
• W2801506876 cites W2106501113 @default.
• W2801506876 cites W2106528128 @default.
• W2801506876 cites W2110780295 @default.
• W2801506876 cites W2111813284 @default.
• W2801506876 cites W2114826007 @default.
• W2801506876 cites W2120016654 @default.
• W2801506876 cites W2120360230 @default.
• W2801506876 cites W2121749506 @default.
• W2801506876 cites W2137500512 @default.
• W2801506876 cites W2140592659 @default.
• W2801506876 cites W2142109796 @default.
• W2801506876 cites W2153765402 @default.
• W2801506876 cites W2158129017 @default.
• W2801506876 cites W2159236648 @default.
• W2801506876 cites W2161651958 @default.
• W2801506876 cites W2162285843 @default.
• W2801506876 cites W2167164325 @default.
• W2801506876 cites W2189685544 @default.
• W2801506876 cites W2343338470 @default.
• W2801506876 cites W2346434120 @default.
• W2801506876 cites W2411413628 @default.
• W2801506876 cites W2461879193 @default.
• W2801506876 cites W2763083634 @default.
• W2801506876 cites W4235264607 @default.
• W2801506876 cites W4236818671 @default.
• W2801506876 cites W4292822122 @default.

• next